Processing Machinery
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EVA Photovoltaic Module Foreign Matter and Hair
Problem Phenomenon
Foreign matter such as hair and dust is sealed into the module, resulting in poor appearance.
Cause Analysis
EVA and the backsheet electrostatically adsorb floating hair and dust; personnel operating above the module during layup bring in foreign matter; small flying insects also get in.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solution
①Do a good job of 6S management to keep the environment clean; ②optimize the layup process to two-person material taking; ③improve workshop cleanliness and install mosquito killer lamps; ④control personnel passages.
Key Takeaway
Foreign matter control is a cleanliness management issue; static elimination and personnel behavior standards are the key.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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